查询词典 polyester resin

The results calculated by the Elovich rate equation showed that K release rates from 1 mol.L-1 HNO3 extraction ＞those from 2 mol.L-1 HNO3 extraction ＞those from H-resin extraction. Elovich equations combining with the data of H-resin and 2 mol.L-1 HNO3 successive extraction could well described the release characteristics of soil K. The correlation coefficients of the equations reached most significant levels (r＝0.956**—0.999**), and standard errors of specific K release capacities between the vaules calculated by the equations and those measured by both successive extractions were smaller(s=1.61 and 3.52). The specific release rates of soil K calculated by the Elovich rate equations were significantly correlated with the indices of soil K availability (the amounts of easily available K, nonexchangeable K, total available K in soils and K absorbed by ryegrass).

研究结果表明：1 mol.L-1 HNO3提取法的释K速率＞2 mol.L-1 HNO3提取法的释K速率＞氢饱和交换树脂提取法的释K速率；氢质交换树脂和2 mol.L-1 HNO3提取法结合Elovich模型较理想地描述了土壤K素的释放特性，拟合方程的相关系数均达极显著水平(r＝0.956**-0.999**)，土壤特征累积释K量的计算值与实测值的标准差较小(s=1.61和3.52)，且通过速率方程计算的土壤特征释K速率与K素有效性指标(速效K、缓效 K、有效K及黑麦草总吸K量)的相关性也较为密切。

The epoxy resin/diethylenetriamine/montmorillonite nanocomposites were prepared by casting and curing processes and the intercalation behavior of epoxy resin in the organophilic montmorillonite was investigated by XRD and DMTA methods.

采用浇模固化成型法制备了环氧树脂／二亚乙基三胺／蒙脱土纳米复合材料，并用X射线衍射、动态力学热分析法等手段研究了环氧树脂在有机蒙脱土中的插层行为。

The steps of the mold method are as follows: the mold tool stack is closed to form the cavity; the valve is opened to allow resin to enter the cavity; the valve is closed; the resin is allowed to cool; and the mold tool stack is opened to allow removal of the plastic overcap from within the mold tool stack.

模制方法的步骤如下：关闭模制工具叠箱以形成空腔；打开阀门从而允许树脂进入空腔；关闭阀门；冷却树脂；打开模制工具叠箱从而允许从模制工具叠箱中取出塑料罐盖。

The water-borne anticorrosion coatings with both the advantages of acrylic resin coatings and ep- oxy resin coatings are got.

配制出兼具丙烯酸树脂涂料和环氧树脂涂料优点的水性防腐涂料。

Materials and methods: Twenty pairs of test and control restorations were placed in 17 patients. The test group was used packable composite resin(P-60, 3M) and the control group was used universal composite resin (Clearfil AP-X, Kuraray).

材料、步骤和方法：将符合纳入标准的17名患者的20对后牙随机分为两组，A组采用P60复合树脂和Adper Prompt自酸蚀粘接剂修复，B组采用Clearfil AP-X复合树脂和Clearfil Se Bond自酸蚀粘接剂修复。

By using systematic solvent method and absorptive resin separating method, the active extraction component of Penthorum Chinense Pursh has been proved to be the ethanol elution from the big pore resin absorbed water extraction.

采用系统溶剂法及吸附树脂分离法进行体内外药效学筛选，证明赶黄草的有效浸出物为水提物经大孔树脂吸附后的乙醇洗脱部分。

However the resin aged fast with addition of anatase nano-TiOa P25 for its photoactivate activity. The mechanism of resin under UV radiation as following was put forward: free radicals produced from the surface of nano-TiOj attack the hydrogen of the methylene, then double bond is formed after the dehydrocholrination, and then the chain is broken after the double bond was oxidized by ozone.

锐钛型纳米TiO_2P25明显加速氯醚树脂的老化，通过IR和XPS分析推断树脂老化的机理为：纳米TiO_2表面产生的自由基攻击树脂中亚甲基的氢原子，发生脱氯化氢生成双键；双键被臭氧氧化发生断链裂解。

This article states that Pinus Tabulaeformis and tannin resin are used to produce tannin resin waferboard under laboratory conditions.

介绍以油松为主要原料，单宁树脂为胶粘剂，在实验室条件下，进行单宁树脂油松大片刨花板的研制。

Calcium humic acid resin is synthesized by one step gel method. With the column filled with the resin made,the column poiser kept at pH 5～6, and with 0.01 mol/L HCl as an eluent, Ca 2+, Mg 2+ can be separated quantitatively.

利用一步凝胶法合成了钙型腐植酸树脂，用自制树脂装柱，控制柱平衡液的pH为5～6并以0.01mol／LHCl为洗脱液，使Ca2＋、Mg2＋离子与其它12种离子定量分离。

The invention discloses anti-collision elastic material, which mainly consists of epoxy resin, polybasic amine curing agent, metal powder and slate powder enhanced particle, and the weight proportion of each component is as follows: epoxy resin of 25 to 30 parts, polybasic amine curing agent of 10 to 16 parts, metal powder of 42 to 45 parts and slate powder enhanced particle of 54 to 58 parts.

本发明公开了一种防撞击的弹性材料，其主要成分有环氧树脂和多元胺类固化剂，以及金属粉和石粉增强粒子，各组分的重量配比是：环氧树脂25～30，多胺类固化剂10～16，金属粉42～45，石粉增强粒子54～58。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。